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-Dominant- [34]
4 years ago
6

What is 4/5 of 20.5?

Mathematics
1 answer:
Mariulka [41]4 years ago
5 0
Hello!

Just multiply across:

4/5 *  20.5/1   =   4(20.5) / 5(1)   =   82 / 5  =  16.4

So 4/5 of 20.5  is 16.4. 

Hope this helps  :))
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reflect (7,4) across the x-axis then reflect the result across the y-axis what are the coordinates of the final point
Andrews [41]

The coordinates of the final point after the two reflections is (-7, -4)

<h3>How to reflect a point across an axis?</h3>

For a point (x, y), a reflection across the x-axis gives the point (x, -y), while for a point (x, y) a reflection across the y-axis gives (-x, y).

In this case, we have the point (7, 4), first we reflect across the x-axis, so we get the point (-7, 4).

Now we reflect across the y-axis, so the sign of the y-component changes, and we get (-7, -4)

So the coordinates of the final point after the two reflections is (-7, -4).

If you want to learn more about reflections, you can read:

brainly.com/question/4289712

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Sally eats 40 donuts everyday for six months... after the 6 months, what does Sally have?
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Answer:

Sally eats 1240 donuts

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Joey made 300 greeting cards. He sold 40% of the cards, gave 85% of the remaining cards to him friends, and kept the rest of the
Sedbober [7]
I believe he kept 18 cards.
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3 years ago
Can someone please help I really need this to be correct.
kupik [55]
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An electrician leans an extension ladder against the outside wall of a house so that it reaches an electric box 22 feet up. The
jeka57 [31]

The ladder and the outside wall form a right triangle

The length of the ladder is 97.8 feet

<h3>How to determine the length of the ladder?</h3>

The given parameters are:

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Angle of elevation (θ) = 77 degrees

The length (L) of the ladder is calculated using the following cosine ratio

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So, we have:

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L = 97.8

Hence, the length of the ladder is 97.8 feet

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2 years ago
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